CN220816057U - Front cover structure of magnetic drive pump without shaft seal - Google Patents

Abstract

The utility model relates to a shaftless magnetic drive pump front cover structure, which mainly comprises a plurality of locking holes formed on the side wall of a cover body in a surrounding manner and a clamping structure formed on the inner side of the side wall, wherein the cover body can be assembled with a rear cover which is required to be fixed by bolts through the locking holes, or the same cover body can be mutually clamped and fixed with the rear cover provided with a fixing part through the clamping structure, so that a single cover body can be in line with the rear cover in different fixing modes, and the convenience and the collocation multiple properties of the assembly and the application are improved.

Description

Sealless magnetic drive pump front cover structure

Technical Field

The utility model relates to a pump structure, in particular to a front cover structure of a magnetically driven pump without a shaft seal.

Background technique

The main advantages of the sealless magnetic drive pump are: corrosion resistance, no seal and no leakage, easy assembly, high durability, and a wide range of applications. Therefore, it can be widely used in PCB processes, chemical industry; filtration circulation, etching, electroplating, surface treatment, sewage treatment, etc., and can exert excellent performance and durability. The sealless magnetic drive pump must be equipped with a front cover at the front end of the bearing, and then the rear cover is assembled to the front cover. The existing front cover specifications have different structures for the method of assembling the rear cover. Therefore, the different assembly methods of the front cover and the rear cover must be matched with the corresponding front cover. The current assembly method includes locking method and assembly method, so the front cover cannot match the rear cover of any assembly method. Since the front cover cannot be universal for each assembly method, the assembly structure must be determined during installation to avoid installation failure.

When the sealless magnetic drive pump is repaired or assembled, a front cover that is engaged with the bearing must be matched. The bearing specifications of the existing sealless magnetic drive pump are roughly divided into cylindrical structures and columnar structures with a mounting plane. Therefore, when replacing the sealless magnetic drive pump, it is also necessary to confirm whether the corresponding front cover meets the specifications of the corresponding bearing, which is very inconvenient when replacing parts.

Utility Model Content

The main purpose of the utility model is to utilize the locking holes in the cover body to assemble with the back cover that needs to be fixed by bolts, or to mutually lock the same cover body with the back cover provided with the fixing part through the locking structure, so that a single cover body can be compatible with the back cover of different fixing methods, thereby improving the convenience and matching diversity during assembly application.

To achieve the above-mentioned purpose, the utility model provides a front cover structure of a sealless magnetic drive pump, which includes: a cover body, a top wall and a side wall surrounding the top wall, a space formed by the top wall and the side wall, a plurality of locking holes formed around the side wall and a locking structure formed on the inner side of the side wall; a first conveying structure, which is arranged at the center position of the cover body and is connected to the space; and a second conveying structure, which is arranged at a side position of the cover body and is connected to the space.

According to an embodiment of the utility model, a rear cover is further included, which is arranged on the cover body and shields the space, and a plurality of through holes corresponding to the locking holes are arranged around the rear cover, and the through holes and the locking holes are fixed by a bolt.

According to an embodiment of the present invention, a rear cover is further included, which is disposed on the cover body and shields the space. The rear cover forms a fixing portion corresponding to the fixing structure and fixing the position.

According to an embodiment of the present invention, it further includes a mounting structure, which is disposed on the cover and located on the first conveying structure.

According to an embodiment of the present invention, the mounting structure includes a fixing member and a plurality of supporting members disposed around the fixing member and connected to the cover.

The beneficial effect of the utility model is that a single cover body can be adapted to rear covers with different fixing methods, thereby improving the convenience and matching diversity during assembly and application.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the cover body of the utility model.

FIG. 2 is a schematic diagram of the planar structure of the cover body of the present invention.

FIG. 3 is a schematic diagram of the utility model in use when the rear cover is assembled with bolts.

FIG. 4 is a schematic side view of the assembled locking cover of the utility model after completion.

FIG. 5 is a schematic diagram of the utility model in use when the rear cover is assembled in a fixed manner.

FIG. 6 is a side view of the structure of the utility model after the clamp-on rear cover is assembled.

Symbol Description

Cover body 1 , top wall 10 , side wall 12 , locking hole 120 , fastening structure 122 , space 14 , first conveying structure 16 , second conveying structure 18 , mounting structure 2 , fixing member 20 , supporting member 22 , rear cover 3 , through hole 30 , fixing portion 32 .

Detailed ways

Please refer to Figures 1 and 2, which are schematic diagrams of the three-dimensional structure of the cover body of the utility model and schematic diagrams of the planar structure of the cover body. The utility model is a front cover structure of a magnetic drive pump without a shaft seal, which is mainly defined by a top wall 10 and a side wall 12 surrounding the top wall 10 to define a cover body 1, a space 14 is formed by the top wall 10 and the side wall 12, a plurality of locking holes 120 are formed around the side wall 12, and a clamping structure 122 is formed on the inner side of the side wall 12, and a first conveying structure 16 is set at the central position of the cover body 1 and communicated with the space 14, and a second conveying structure 18 is set at a side position of the cover body 1 and communicated with the space 14.

Among them, the fixing structure 122 extends from the connection point with the second conveying structure 18 in a clockwise direction and is not connected back to the connection point with the second conveying structure 18. The fixing structure 122 extends from the connection point with the second conveying structure 18 in a tapered manner. Due to the extension direction and the tapered effect of the width of the fixing structure 122, a vortex effect is generated after the liquid enters from the second conveying structure 18, thereby making the overall flow smoother. At the same time, because the fixing structure 122 is not designed as a full-circle structure, the use of plastic is reduced, thereby reducing the production cost.

In addition, the cover body 1 is provided with a mounting structure 2 located on the first conveying structure 16 . The mounting structure 2 includes a fixing member 20 and a plurality of supporting members 22 disposed around the fixing member 20 and connected to the cover body 1 .

Referring to FIG. 3 and FIG. 4 , the utility model is shown in the state of using the rear cover assembled with bolts and the side view of the structure of the completed locking cover assembly. The rear cover 3 of the cover body 1 in this embodiment is mainly matched with a screw lock, wherein the through holes 30 arranged around the rear cover 3 correspond to the locking holes 120 on the cover body 1, and then the through holes 30 and the locking holes 120 are penetrated by bolts to complete the assembly of the cover 3 and the cover body 1 and cover the space 14.

Referring to FIG. 5 and FIG. 6 , there are schematic diagrams of the use state of the back cover assembled in a fixed manner and a schematic diagram of the side view structure of the back cover assembled in a clamping manner according to the present invention. In this embodiment, the same cover body 1 can be used with the back cover 3 installed by clamping. The back cover 3 cannot be installed by locking, so the fixing portion 32 formed on the back cover 3 is directly clamped into the cover body 1 and fixed in position corresponding to the clamping structure 122, thereby completing the assembly of the back cover 3 and the cover body 1 and shielding the space 14.

Claims (7)

1. A sealless magnetic drive pump front cover structure, characterized in that it comprises: A cover body, a top wall and a side wall surrounding the top wall, a space formed by the top wall and the side wall, a plurality of locking holes formed around the side wall and a locking structure formed on the inner side of the side wall; a first conveying structure, which is disposed at the center of the cover and communicated with the space; and A second conveying structure is arranged at one side of the cover body and communicated with the space. 2. The sealless magnetic drive pump front cover structure as described in claim 1 is characterized in that it further includes a rear cover, which is arranged on the cover body and shields the space, and a plurality of through holes corresponding to the locking holes are arranged around the rear cover, and the through holes and the locking holes are fixed by a bolt. 3. The sealless magnetic drive pump front cover structure as claimed in claim 1, further comprising a rear cover, which is disposed on the cover body and shields the space, and the rear cover forms a fixing portion corresponding to the clamping structure and fixing the position. 4. The sealless magnetic drive pump front cover structure as claimed in claim 1, wherein the fixing structure extends from the connection point with the second conveying structure in a clockwise direction and is not connected back to the connection point with the second conveying structure. 5 . The sealless magnetic drive pump front cover structure as claimed in claim 4 , wherein the fixing structure extends from a position connected with the second conveying structure in a tapered manner. 6 . The sealless magnetic drive pump front cover structure as claimed in claim 1 , further comprising a mounting structure disposed on the cover body and located at the first conveying structure. 7 . The sealless magnetic drive pump front cover structure as claimed in claim 6 , wherein the mounting structure comprises a fixing member and a plurality of supporting members disposed around the fixing member and connected to the cover body.